Three cues, because one is missed. A teal banner across the top of the viewport names the session
("Editing: Sketch N") and where its exits are; the printer bed is muted for the duration, since a
plate grid and a sketch grid are the same visual language and reading one as the other is how a
sketch gets drawn against the wrong reference; and N looks straight down the plane normal at the
current zoom, with the plane's own y axis as up, because no hand-orbit lands exactly square and a
sketch read at an angle is one whose right angles do not look like right angles.
The banner is an INDICATOR. Finish and Cancel stay on the single ribbon action bar — the tab had
three competing confirm surfaces once and that is not being reopened for a strip of colour. It
sits above the canvas rather than floating inside it: a child window over a wxGLCanvas is a native
window on GTK with no reliable stacking over GL, and being unmissable beats being clever.
The bed checkbox stays the stored preference and is restored on leaving the sketch; ticking it
mid-sketch still shows the bed, because that is a deliberate act and this is only a default.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011FbJKJAJxxkhDTs9XdZzKA
This fork had never been gated end to end. Five separate things stopped it, none
of them a defect in the CAD code itself, and each failure named the wrong
subsystem — which is why they survived.
1. run-all-checks.sh invoked docs/ux/mockups/gen_offer_table.py. The design docs
moved to docs/CAD/ (bbd1989e1e) and this path did not follow, so the rung
failed on a missing file.
2. gen_offer_table.py then resolved REPO one dirname short, because it now sits a
level deeper. OUT pointed at docs/src/.../DesignOffer.hpp, which does not
exist, so --check diffed the generated table against an EMPTY file and
reported all 189 lines as a difference.
3. DISPLAY was never passed into the container. The check scripts fall back to
":10", which is the other fork's rig; this one's Xvfb is :11. Symptom:
"FATAL no app window on :10", which reads like a dead app.
4. Every absolute chrome coordinate was written in the Snapmaker fork's layout.
This fork keeps mainline's top row (File / save / undo / redo / Calibration
with the title), so the whole chrome sits 26 px lower. At the unshifted y the
Design-tab click landed in the toolbar and the app stayed on the Home page,
reported as "no sketch opened after plane click + Shift+S"; the unshifted
Construction checkbox reported "0 construction axis". The three constants now
derive from CHROME_DY. Canvas coordinates were never affected -- clickmm()
computes them from live canvas geometry -- which is why dozens of geometric
properties passed exactly on a GUI that had never been driven.
5. CON_BTN was stale for every index after 5, from the sketch epic's six new
buttons. Fixed in both forks; see the companion commit on snaporca.
pdftocairo was also missing from the rig image (installed there, not a repo
change), without which every corpus sheet threw.
RESULT: offer-table, kernel, engine, corpus, corpus-scale and offer all hold.
The gesture ladder now reaches D2 and applies Equal length through the Constrain
toolbar, both sides landing at 99.928133658; it then fails re-entering the sketch
after commit, filed as snaporca-eoj1 with the evidence and the next measurement
to take. Kernel here is 7701 assertions / 270 cases.
Tommaso Bianchi